The nasal spray is approved for use in healthy, non-pregnant individuals, 2 through 49 years of age. People with some medical conditions should not receive the nasal spray flu vaccine.
Some people should not get the nasal spray flu vaccine:
- Children younger than 2 years
- Adults 50 years and older
- Pregnant women
- People with a history of severe allergic reaction to any component of the vaccine or to any previous dose of any influenza vaccine
- Children 2 years through 17 years of age who are receiving aspirin- or salicylate-containing medications.
- People with weakened immune systems (immunosuppression) from any cause
- Children 2 through 4 years who have asthma or who have had a history of wheezing in the past 12 months.
- People who have taken flu antiviral drugs within a certain amount of time. (48 hours for oseltamivir and zanamivir, 5 days for peramivir, and 17 days for baloxavir.)
- People who care for severely immunocompromised persons who require a protected environment (or otherwise avoid contact with those persons for 7 days after getting the nasal spray vaccine).
- People with cochlear implants
- People without a spleen, or with a non-functioning spleen
- People with an active leak between the cerebrospinal fluid and the mouth, nose, ear, or other place within the skull
In addition, the following conditions are precautions to the use of the nasal spray influenza vaccine:
- Asthma in people aged 5 years and older.
- Other underlying medical conditions that can put people at higher risk of serious flu complications. These include conditions such as lung disease, heart disease (except isolated hypertension), kidney disease (like diabetes), kidney or liver disorders, neurologic/neuromuscular, or metabolic disorders. See “People at High Risk of Developing Flu–Related Complications.”
- Moderate or severe acute illness with or without fever.
- Guillain-Barré Syndrome within 6 weeks following a previous dose of influenza vaccine.
Want to know more about the flu shot? Learn everything you need to know.